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Barta, Robin and Schiepel, Daniel and Herzog, Sebastian and Wagner, Claus (2022) Probabilistic high-density Particle-Tracking-Velocimetry of turbulent flow structures in a cubic Rayleigh-Bénard convection cell. In: 20th International Symposium on Application of Laser and Imaging Techniques to Fluid Mechanics 2022. 20th International Symposium on Application of Laser and Imaging Techniques to Fluid Mechanics 2022, 2022-07-11 - 2022-07-14, Lissabon, Portugal.
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Official URL: http://www.lisbon-lasersymposium.org/LXLASER2022
Abstract
We apply a new probabilistic python-based high-density Particle-Tracking-Velocimetry (pyHDPTV) method and the commercial Shake-The-Box (STB) algorithm from LaVision (DaVis v10.2.0) to measured data of a turbulent RayleighBénard (RB) convection in a cubic cell. The measurement was performed in water (Prandtl number Pr = 7) with a seeding particle densities of 0,04 ppp at the hard turbulence regime with Rayleigh number Ra = 1 · 1E10. The comparison of the two PTV approaches reveals that the probabilistic pyHDPTV method leads to similar qualitative flow structures as with the state-of-the-art STB method. However, the pyHDPTV framework leads to better quantitative results such as longer track lengths, more active tracks and a higher track density over the whole measurement volume.
| Item URL in elib: | https://elib.dlr.de/186714/ | ||||||||||||||||||||
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| Document Type: | Conference or Workshop Item (Speech) | ||||||||||||||||||||
| Title: | Probabilistic high-density Particle-Tracking-Velocimetry of turbulent flow structures in a cubic Rayleigh-Bénard convection cell. | ||||||||||||||||||||
| Authors: |
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| Date: | July 2022 | ||||||||||||||||||||
| Journal or Publication Title: | 20th International Symposium on Application of Laser and Imaging Techniques to Fluid Mechanics 2022 | ||||||||||||||||||||
| Refereed publication: | Yes | ||||||||||||||||||||
| Open Access: | No | ||||||||||||||||||||
| Gold Open Access: | No | ||||||||||||||||||||
| In SCOPUS: | No | ||||||||||||||||||||
| In ISI Web of Science: | No | ||||||||||||||||||||
| Status: | Published | ||||||||||||||||||||
| Keywords: | PTV processing, Rayleigh Bénard convection, Turbulence. | ||||||||||||||||||||
| Event Title: | 20th International Symposium on Application of Laser and Imaging Techniques to Fluid Mechanics 2022 | ||||||||||||||||||||
| Event Location: | Lissabon, Portugal | ||||||||||||||||||||
| Event Type: | international Conference | ||||||||||||||||||||
| Event Start Date: | 11 July 2022 | ||||||||||||||||||||
| Event End Date: | 14 July 2022 | ||||||||||||||||||||
| Organizer: | ADAI - Association for the Development of Industrial Aerodynamics Center for Innovation, Technology and Policy Research IN+ | ||||||||||||||||||||
| HGF - Research field: | Aeronautics, Space and Transport | ||||||||||||||||||||
| HGF - Program: | Transport | ||||||||||||||||||||
| HGF - Program Themes: | Rail Transport | ||||||||||||||||||||
| DLR - Research area: | Transport | ||||||||||||||||||||
| DLR - Program: | V SC Schienenverkehr | ||||||||||||||||||||
| DLR - Research theme (Project): | V - NGT BIT (old) | ||||||||||||||||||||
| Location: | Göttingen | ||||||||||||||||||||
| Institutes and Institutions: | Institute for Aerodynamics and Flow Technology > Ground Vehicles | ||||||||||||||||||||
| Deposited By: | Barta, Robin | ||||||||||||||||||||
| Deposited On: | 29 Jul 2022 16:20 | ||||||||||||||||||||
| Last Modified: | 24 Apr 2024 20:48 |
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- Probabilistic high-density Particle-Tracking-Velocimetry of turbulent flow structures in a cubic Rayleigh-Bénard convection cell. (deposited 29 Jul 2022 16:20) [Currently Displayed]
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